← View Generic B0091 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0091: B0091: Power Window Relay Circuit Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B0091 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
⚠️

Symptoms

  • • Windows may not move up or down
  • • or may move slowly or erratically.
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Common Causes

  • • Faulty power window relay
  • • faulty window switch
  • • wiring issue
  • • or blown fuse.
🛠️

How to Fix B0091 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the fuse box for a blown fuse and replace it if necessary. 2. Check the wiring harness for damage or corrosion and repair or replace as needed. 3. Test the power window relay and replace it if faulty. 4. Test the window switch and replace it if faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

power window relay Shop ↗ window switch Shop ↗ wiring harness Shop ↗ fuse Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP

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Related Diagnostic Codes

Other codes that may appear with B0091

B0089 Sequential Code

B0089: Climate Control Blower Motor Control Circuit Malfunction

Medium
B0090 Sequential Code

B0090: Door Locks Actuator Malfunction

Medium
B0092 Sequential Code

B0092: Seat Position Sensor Circuit Malfunction

Medium
B0093 Sequential Code

B0093: Body Control Module (BCM) - Exterior Lighting Circuit Malfunction

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system